CN202229606U - Layered slicing stacking-assembly type smoke cover - Google Patents
Layered slicing stacking-assembly type smoke cover Download PDFInfo
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- CN202229606U CN202229606U CN2011200802108U CN201120080210U CN202229606U CN 202229606 U CN202229606 U CN 202229606U CN 2011200802108 U CN2011200802108 U CN 2011200802108U CN 201120080210 U CN201120080210 U CN 201120080210U CN 202229606 U CN202229606 U CN 202229606U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The utility model provides a layered slicing stacking-assembly type smoke cover suitable for a submerged arc furnace or a smelting furnace, the smoke cover is characterized in that, the smoke cover is divided into multiple layers of cover plates such as electrode seal cover plates, center cover plates, and peripheral cover plates, the electrode seal cover plates are installed at the upper layer, the center cover plates are installed at the middle layer, and the peripheral cover plates are installed at the lower layer, the upper layer cover plates are in an stacking assembly on the lower layer cover plates, the outer edges exceed water baffling plates on the lower layer cover plates; an insulation pad is installed between each layer of cover plates; also, each layer of cover plates is divided into plural sheets of small cover plates convenient for transportation, the small cover plates at the same layer can be connected via bolts; the internal of each small cover plate is provided with an independent cooling water path; a high temperature resistance protective layer is constructed close to the internal side of a hearth; the back side of the small cover plate is provided with the water baffling plate, the left and right two sides are provided with protruding installation wing edges, preventing water leaked on the cover plates from flowing into the hearth in the smoke cover. The smoke cover with the above structure is advantaged by convenient transport, simple maintenance, and whole waterproof function.
Description
Technical field the utility model relates to a kind of novel stacked petticoat pipe of layering burst, can be applicable on the hot stove in various ore deposits, also goes on the smelting furnace.
The petticoat pipe that the hot stove in the present ore deposit of background technology is commonly used is water-cooled skeleton cover-plate type structure mostly, and its principal character is installed in the top of water-cooled column for the petticoat pipe of this structure has one and the onesize water-cooled skeleton of its diameter, supports the top of whole petticoat pipe.On the water-cooled skeleton, the water-cooled cover plate is installed, in the outside of water-cooled column, the water-cooled sidewall is installed.According to the needs of smelting process, on the water-cooled cover plate with the water-cooled sidewall on be furnished with material pipe through hole, flue gas through hole, electrode through hole, explosionproof hole, instrument installing hole, access door, actuating doors and observation door etc.
The water-cooled skeleton is welded together by the steel of two kinds of unlike materials usually, and electrode in order to reduce the induction to electrode current, adopts the material of low permeability through near the zone the hole (in 300 millimeters of the distances); Away from the zone (distance 300 millimeter beyond) of electrode,, adopt low-cost common material in order to reduce manufacturing cost through the hole.The water-cooled skeleton is an integral solder part maximum in the petticoat pipe, also is the highest parts of manufacturing process requirement, also is simultaneously the easiest impaired parts.
First shortcoming of this structure petticoat pipe is that petticoat pipe occurs easily leaking and causes the phenomenon of heating blowing-out; Wherein leaking more than 95% occurs on the water-cooled skeleton; The main cause that the water-cooled skeleton leaks has: 1, the weight at petticoat pipe top self is heavier; The petticoat pipe top is equipped with many heavier parts (like chimney, material pipe) simultaneously, makes the inside of water-cooled skeleton produce bigger mechanical stress.2, the water-cooled skeleton be installed in the water-cooled cover plate below, directly receive the ablation of furnace flame, the oxidation attenuation that the steel of water-cooled skeleton can be gradually.3, impurity in the cooling water or calcium ions and magnesium ions deposition or fouling on the inner water channel of water-cooled skeleton gradually influenced the cooling effect to the water-cooled skeleton.4, the temperature of the hot stove boiler face in ore deposit significantly fluctuation along with the variation of operation causes the also fluctuation thereupon of temperature of water-cooled skeleton, makes the bigger thermal stress of the inner generation of water-cooled skeleton.5, the water-cooled skeleton is welded by multiple material usually, on the weld seam of foreign material butt joint, occurs crackle more easily.More than the combined influence of several unfavorable factors, make the water-cooled skeleton crackle or perforation often occur, cause the generation of drainage.The untimely processing in case petticoat pipe leaks flows in the burner hearth of high temperature, and the danger of blasting is arranged.
Second shortcoming of this structure petticoat pipe is that leakage area is inconvenient to repair, and during ordinary production, the temperature in the petticoat pipe is not less than 600 degrees centigrade, and the temperature after the short time blowing out in the petticoat pipe is also very high, and the maintenance personal constructs not only dangerous but also inconvenient in petticoat pipe.On the other hand, the maintenance personal during leakage area on the soldering water-cooled skeleton, adopts the posture welding of overhead welding, the bad assurance of welding quality mostly in petticoat pipe.
The 3rd shortcoming of this structure petticoat pipe is that the water-cooled skeleton both had been inconvenient to transport and also is inconvenient to change, and the water-cooled skeleton is an integral solder part that diameter is bigger, and the water-cooled skeleton diameter of the hot stove in the above ore deposit of 20000KVA is all more than 7 meters.If big like this parts after equipment manufacturing completes, are difficult to be transported on the hot stove in ore deposit, if on the hot stove in ore deposit welding forming, can cause the ore deposit blowing out of hot furnace superintendent time.When changing the water-cooled skeleton simultaneously, must remove other parts of installing on water-cooled cover plate, water-cooled sidewall and the petticoat pipe, the workload of dismounting is very big.
Another shortcoming of this structure petticoat pipe is the function that petticoat pipe does not possess waterproof; The petticoat pipe top is furnished with a lot of cooling water pipes, like the cooling water pipe of electrode system, and the cooling water pipe of material pipe; In case these water pipes break or come off; A large amount of current can flow in the slit of water-cooled cover plate and water-cooled skeleton in the burner hearth in the petticoat pipe on petticoat pipe, have potential safety hazard.
Summary of the invention the utility model provides the stacked petticoat pipe of a kind of layering burst for overcoming above defective.
The hot stove petticoat pipe in the utility model ore deposit has mainly adopted the design of layering burst closed assembly.Here said layering is meant to be divided into the multilayer cover plate structure to petticoat pipe, like electrode seal cover board, central cover, peripheral cover plate.The electrode seal cover board is installed in the upper strata, is convenient for changing; Central cover is installed in the middle level, and peripheral cover plate is installed in lower floor, and cover plate of upper layer is stacked on lower floor's cover plate, and the outer exceeds the water fender at the lower floor cover plate back side.Here said burst is meant the minor flaps that every layer of bigger cover plate of diameter is divided into the convenient transportation of multi-disc, with connecting through bolt between the minor flaps of layer.
The petticoat pipe of this structure has been cancelled and not only has been inconvenient to transport the water-cooled skeleton of installing but also occurring drainage easily; The load-bearing mode of petticoat pipe also changes again; The weight part of central cover and electrode seal cover board is supported on the peripheral cover plate, and a part is hung on the bearing platform of the upper strata of factory building through the petticoat pipe suspension rod.
First effect of layering burst is the difficulty that has reduced maintenance, behind the layering burst, with the cover plate of one deck, connects into an integral body through bolt, and the cover plate of different layers adopts the mode that laminates to be bolted together, and mounting hardness reduces greatly.If certain a slice cover plate in the petticoat pipe leaks, only need pull down about this cover plate the connecting bolt with the outer, just can take out this sheet cover plate, change subsequent use cover plate, go soldering and needn't emit high temperature to get into petticoat pipe inside, practiced thrift the time of keeping in repair.
Second effect of layering burst is the integral waterproofing function that has increased petticoat pipe.Because there is protruding water fender at the back side of each sheet cover plate of this structure petticoat pipe, there is the protruding installation wing left and right sides along plate, and the outer of cover plate has exceeded the water fender at the lower floor cover plate back side.In case there is water to flow on the cover board, can only flow to down from the outer of cover plate on one deck cover plate, in like manner, outside the outflow petticoat pipe successively, and can not get in the inner burner hearth of petticoat pipe, reach the effect of integral waterproofing.Water fender also can limit the horizontal play of cover plate of upper layer simultaneously.
The 3rd effect of layering burst is to transport for ease and install; Every layer of cover plate of petticoat pipe made through burst, can satisfy the requirement of transporting for long-distance, and each piece minor flaps can be after equipment manufacturing completes behind the burst, is assembled into integral body again after being transported to the place to use.In case a certain cover plate damages in the petticoat pipe, use producer only need accomplish the replacing of this cover plate in the short period of time, just can reach the purpose of quick reparation, and the cover plate of changing simultaneously also can be transferred to safe position and repair back subsequent use.
The same with petticoat pipe commonly used at present, each sheet minor flaps of the utility model petticoat pipe also adopts the mode of water flowing cooling, is connected with outside water route for ease, and there is an independently cooling water channel inside of each sheet minor flaps.
Appended drawings 1 is the vertical view of the utility model petticoat pipe, and accompanying drawing 2 is the cutaway views in A-A cross section in the accompanying drawing 1, and accompanying drawing 3 is the partial enlarged drawings in I zone in the accompanying drawing 2.Among the figure, [1] is meant peripheral cover plate, and [2] are meant central cover; [3] be meant the electrode seal cover board, [4] are meant insulating pad, and [5] are meant the petticoat pipe suspension rod; [6] be meant high temperature resistance protective layer, [7] are meant and the wing are installed along plate, and [8] are meant water fender; [9] be meant that electrode passes through the hole, [10] are meant that flue gas passes through the hole.
Accompanying drawing 4 is vertical views of the present water-cooled skeleton cover-plate type petticoat pipe of using always, and accompanying drawing 5 is the cutaway views in B-B cross section in the accompanying drawing 4, and accompanying drawing 6 is the cutaway views in water-cooled skeleton D-D cross section in accompanying drawing 7, and accompanying drawing 7 is the cutaway views in C-C cross section in the accompanying drawing 6.Among the figure: [11] are meant the water-cooled skeleton, and [12] are meant the water-cooled cover plate, and [13] are meant electrode seals, and [14] are meant the petticoat pipe suspension rod, and [15] are meant the water-cooled sidewall, and [16] are meant the water-cooled column, and [17] are meant that electrode passes through the hole, and [18] are meant that flue gas passes through the hole.
The specific embodiment is shown in accompanying drawing 1, accompanying drawing 2, and peripheral cover plate [1] is mounted in the orlop of petticoat pipe; Central cover [2] be installed in peripheral cover plate above; Electrode seal cover board [3] is installed on the central cover, dismounting easily.For the ease of transportation and installation, every layer of cover plate is divided into the multi-disc minor flaps again to be made.Each sheet minor flaps has an independently chilled(cooling) water return (CWR), can connect into an integral body through bolt with the cover plate of one deck.
The weight of electrode seal cover board is supported on the central cover, and the weight part of central cover is supported on the peripheral cover plate, and a part is hung on upper strata load-bearing floor through petticoat pipe suspension rod [5].
Insulating pad [4] is installed between each layer cover plate, guaranteeing between any two phase electrodes, perhaps any phase electrode over the ground between, multilayer insulation is all arranged.
In order to prolong the service life of cover plate, in the inboard of each piece minor flaps near burner hearth, construction has high temperature resistance protective layer.
Concerning with a slice minor flaps; The easily impaired degree in each position is also different; In the cover plate along (near a side at petticoat pipe center) because the thermal radiation temperature height is impaired easily, cover plate outer (away from a side at petticoat pipe center) is unsuitable impaired because protection (like electrode seal cover board and central cover) or the radiation temperature low (like peripheral cover plate) of lower floor's cover plate are arranged.In order to make in the cover plate along trying one's best not by scaling loss; Except the protection of high temperature resistance protective layer, the impurity that also must slow down in the cooling water produces deposition or fouling in this zone, has mainly adopted following three kinds of measures: the internal water channel that 1, as far as possible designs different cross section; Make near the water channel cross section on interior edge little; Flow rate of water flow is fast, and big near the water channel cross section of outer, flow rate of water flow is slow.2, adopt the internal water channel of (is basic point with the petticoat pipe center) radial layout as far as possible.3, along high, the inclined-plane that the outer is low utilized the rolling action of current, lets impurity deposit to the slow outer of flow velocity with current in made as far as possible the bottom surface of internal water channel, guaranteed the cooling effect on edge in the cover plate, prolonged the service life of cover plate.
Petticoat pipe middle distance electrode with interior cover plate, like electrode seal cover board, central cover, in order to reduce the induction to electrode current, preferentially adopts the material of low permeability through 300 millimeters in hole; Through the 300 millimeters cover plates in addition in hole,,, can adopt common material apart from electrode in order to reduce manufacturing cost like peripheral cover plate.
Claims (6)
1. the stacked petticoat pipe of layering burst that can be suitable for hot stove in ore deposit or smelting furnace is characterized in that: be divided into the multilayer cover plate to petticoat pipe, be respectively electrode seal cover board, central cover, peripheral cover plate; The electrode seal cover board is installed in the upper strata; Central cover is installed in the middle level, and peripheral cover plate is installed in lower floor, and the cover plate on upper strata is stacked on lower floor's cover plate successively; The minor flaps that again every layer of cover plate is divided into the convenient transportation of multi-disc simultaneously; With connecting through bolt between the minor flaps of layer, the weight part of central cover and electrode seal cover board is supported on the peripheral cover plate, and a part is hung on the bearing platform of the upper strata of factory building through the petticoat pipe suspension rod.
2. according to the petticoat pipe shown in the claim 1, it is characterized in that; Between every layer of cover plate insulation is installed.
3. according to the petticoat pipe shown in the claim 1, it is characterized in that; There is an independently cooling water channel inside of each sheet minor flaps.
4. according to the petticoat pipe shown in the claim 1, it is characterized in that; Each sheet minor flaps has high temperature resistance protective layer near the inboard construction of burner hearth.
5. according to the petticoat pipe shown in the claim 1, it is characterized in that; There is protruding water fender at the back side of each sheet minor flaps, and there is the protruding installation wing left and right sides along plate, and the outer of cover plate has exceeded the water fender at the lower floor cover plate back side.
6. according to the petticoat pipe shown in the claim 1, it is characterized in that; Electrode seal cover board, central cover preferentially adopt the material of low permeability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200802108U CN202229606U (en) | 2011-03-18 | 2011-03-18 | Layered slicing stacking-assembly type smoke cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200802108U CN202229606U (en) | 2011-03-18 | 2011-03-18 | Layered slicing stacking-assembly type smoke cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202229606U true CN202229606U (en) | 2012-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200802108U Expired - Fee Related CN202229606U (en) | 2011-03-18 | 2011-03-18 | Layered slicing stacking-assembly type smoke cover |
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| Country | Link |
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| CN (1) | CN202229606U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822497A (en) * | 2014-03-18 | 2014-05-28 | 大连华锐重工集团股份有限公司 | Rectangular hood suitable for multi-loop DC submerged arc furnace |
| CN105737623A (en) * | 2016-03-31 | 2016-07-06 | 通化建新科技有限公司 | Submerged arc furnace fume hood |
-
2011
- 2011-03-18 CN CN2011200802108U patent/CN202229606U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822497A (en) * | 2014-03-18 | 2014-05-28 | 大连华锐重工集团股份有限公司 | Rectangular hood suitable for multi-loop DC submerged arc furnace |
| CN103822497B (en) * | 2014-03-18 | 2015-03-25 | 大连华锐重工集团股份有限公司 | Rectangular hood suitable for multi-loop DC submerged arc furnace |
| CN105737623A (en) * | 2016-03-31 | 2016-07-06 | 通化建新科技有限公司 | Submerged arc furnace fume hood |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20140318 |